EP 0853919 A3 20010509 - A high resolution intravascular ultrasound transducer assembly having a flexible substrate and method for manufacture thereof
Title (en)
A high resolution intravascular ultrasound transducer assembly having a flexible substrate and method for manufacture thereof
Title (de)
Hochauflösende intravaskuläre Ultraschalltransducervorrichtung mit einem flexiblen Substrat und Methode zu seiner Herstellung
Title (fr)
Transducteur ultrasonique de haute résolution avec un substrat flexible et méthode pour sa fabrication
Publication
Application
Priority
US 78043797 A 19970108
Abstract (en)
[origin: EP0853919A2] An ultrasound transducer assembly of the present invention includes a flexible circuit to which an ultrasound transducer array and integrated circuitry are attached during fabrication of the ultrasound transducer assembly. Integrated circuitry and transducer elements are attached to the flexible circuit while the flexible circuit is in a substantially flat shape. The contacts of the transducer elements are positioned on substantially the same plane such that electrical contact with signal and ground lines on the flexible circuit is established without the need for conductive bridges to physically remote electrodes. In an embodiment of the invention wherein the transducer elements are arranged in a cylindrical array, gaps are entirely filled with backing material having a relatively low acoustic impedance. Structure integrity is enhanced and a path to ground facilitated by electrically conductive disks attached to the ends of the transducer assembly.
IPC 1-7
IPC 8 full level
A61B 8/12 (2006.01); B06B 1/06 (2006.01); H04R 17/00 (2006.01); H05K 1/18 (2006.01)
CPC (source: EP US)
A61B 1/0011 (2013.01 - EP US); A61B 8/12 (2013.01 - EP US); A61B 8/4488 (2013.01 - EP US); B06B 1/0622 (2013.01 - EP US); B06B 1/0633 (2013.01 - EP US); A61B 8/445 (2013.01 - EP US); H05K 1/189 (2013.01 - EP US); Y10T 29/42 (2015.01 - EP US); Y10T 29/49005 (2015.01 - EP US); Y10T 29/4913 (2015.01 - EP US)
Citation (search report)
- [PA] WO 9723865 A1 19970703 - ENDOSONICS CORP [US]
- [A] EP 0671221 A2 19950913 - INTRAVASCULAR RES LTD [GB]
- [A] US 4686408 A 19870811 - ISHIYAMA KAZUFUMI [JP]
- [A] JP S58118739 A 19830714 - TERUMO CORP
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0853919 A2 19980722; EP 0853919 A3 20010509; EP 0853919 B1 20111228; AT E538879 T1 20120115; CA 2226194 A1 19980708; JP H10192281 A 19980728; US 2004054289 A1 20040318; US 2005197574 A1 20050908; US 5857974 A 19990112; US 6049958 A 20000418; US 6618916 B1 20030916; US 6899682 B2 20050531
DOCDB simple family (application)
EP 98200020 A 19980107; AT 98200020 T 19980107; CA 2226194 A 19971231; JP 257798 A 19980108; US 12025705 A 20050502; US 55086400 A 20000417; US 66126903 A 20030912; US 78043797 A 19970108; US 97467797 A 19971119